Improvement in sleighs



J. MARTIN.

Sleigh. 4 No. 109,531. 4 Patented NOW-2.2, 1870.

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nit-r11 fine JAMES MARTIN, OF MORENOI, MICHIGAN.

Letters Patent No. 109,531, dated November 22, 1870.

IMPROVEMENT IN SLEIGH S.

The Schedule referred to in these Letters Patent and making part of thesame.

'Jo all whom it may concern Be it known that I, JAMES MARTIN, ofMorenci, in the county of Lenawee and State of Michigan, have invented anew and valuablevImprovement in Sleighs; and I do hereby declare thatthe following is a full, clear, and exact description of theconstruction and operation of the same, reterence being had to theannexed drawing making a part of this specification, and to the lettersand figures of reference marked thereon.

Figure 1 of the drawing is a representation of my sleigh-runner inlongitudinal vertical section.

Figure 2 is a longitudinal vertical section of the front beam, with thetwo front runners in transverse vertical section.-

Figure 3 is a side elevation; and

Figure 4. a plan view of the sled-frame with runners.

The nature of my invention consists in the construction and arrangementof an oscillating sleighrunner whereby the draft'or point where thepower is applied, is lowered as near the ground as possible.

in order to enable others skilled in the art to which my inventionappertains to make-and use the same, I will now proceed to describe itsconstruction and operation.

A represents the sleigh-runner, constructed in any of the known andusual ways.

On the upper side of .the runner A is placed a knee, B, the upper sideof which is curved, forming a segment of a circle.

There is also a semicircular bar, 0, attached to the upper side of the.runner, said her passing a suitable distance above the knee B.

Both the knee B and bar C are parts of circles having the same center,namely, the point where the power is applied to the runner, as will behereinafter described.

D represents the beam which connects the two runners together, said beambeing near each end provided with a grooved casting,.a-, on the underside;

The upper curved side of the knee B passes through the groove in saidcasting, so thatthe beam does, in fact, rest upon the knee. 7

Onthe upper side of the, beam D, near each end, is secured a curvedelliptical-shaped brace, E, the ends of which aregrooved on their underor inner side.

The semicircular bar .0 passes through said grooved ends of the brace E,and also through a groove in the upper side of the beam D, and thus therunner is securely braced, so as not to turn inward nor outwa'rcl.

From the casting a on the inner side of the knee B, descends an arm, I),which is pivoted to cars projecting upward from the shoe of the runner,this point being the center of the circles B and O, as above mentioned.

Thus the entire draft is applied to the runners as near thc,groun'd asit is possible, and at'the same time there is no weight on the pins orpivots, as thatis all on the'knce B and barC.

Having thus fully described my invention,

What I claim as new, and desire to secure by Lett'ers Patent, is-

1. The runner A provided with the knee B and semicircular ,bar 0,constructed and arranged substantially as and for the purposes hereinset forth.

2. The grooved casting it, provided with the arm I) and arranged on thebeam D, substantially as and for the purposes herein set fortln.

3. The combination of the runner A, knee B, bar 0, beam D, brace E,castingc, andarm I), all constructed and arranged substantially as andfor the purposes herein set fort-h.

In testimony that I claim the above, I have hereunto subscribed my namein the presence of two witnesses.

JAMES MARTIN.

\Vitnesses O. S. INGALS, O. H. GALIS.

